Variable angle locking implant
First Claim
1. A bone plate system comprising:
- a bone plate including an upper surface;
a lower surface; and
at least one opening extending from the lower surface to the upper surface, the at least one opening having an inner surface consisting of a plurality of first fins and a plurality of second fins;
wherein;
the plurality of first fins are circumferentially disposed about the inner surface, the plurality of circumferentially disposed first fins defining a first circumferential edge including a series of concave and convex surfaces;
the plurality of second fins are circumferentially disposed about the inner surface, the plurality of circumferentially disposed second fins defining a second circumferential edge including a series of concave and convex surfaces;
the plurality of first fins are closer to the upper surface than the plurality of second fins; and
wherein the plurality of first fins and the plurality of second fins are adapted and configured to deform in order to secure a position of a head portion of a bone fastener inserted into the at least one opening; and
wherein the plurality of first and second fins each have a tapered surface extending from the inner surface of the at least one opening to a terminal end of the fin.
1 Assignment
0 Petitions
Accused Products
Abstract
A variable angle locking implant includes a bone plate having a lower surface, an upper surface, and at least one opening extending from the lower surface to the upper surface along an axis. The opening has a plurality of fins oriented along a plane. The axis is non-perpendicular to a tangent of a projection of the lower surface across the opening, the tangent defined at the intersection between the axis and the projected lower surface, and/or the plane is non-parallel to the tangent. The implant includes at least one fastener, and the plurality of fins are deflectable relative to a head portion of the fastener such that the fastener can be inserted and retained at any one of a plurality of angles.
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Citations
15 Claims
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1. A bone plate system comprising:
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a bone plate including an upper surface; a lower surface; and at least one opening extending from the lower surface to the upper surface, the at least one opening having an inner surface consisting of a plurality of first fins and a plurality of second fins; wherein; the plurality of first fins are circumferentially disposed about the inner surface, the plurality of circumferentially disposed first fins defining a first circumferential edge including a series of concave and convex surfaces; the plurality of second fins are circumferentially disposed about the inner surface, the plurality of circumferentially disposed second fins defining a second circumferential edge including a series of concave and convex surfaces; the plurality of first fins are closer to the upper surface than the plurality of second fins; and wherein the plurality of first fins and the plurality of second fins are adapted and configured to deform in order to secure a position of a head portion of a bone fastener inserted into the at least one opening; and wherein the plurality of first and second fins each have a tapered surface extending from the inner surface of the at least one opening to a terminal end of the fin. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A bone plate comprising:
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an upper surface; a lower surface; and an opening extending from the lower surface to the upper surface, the opening having an inner surface consisting of a plurality of first fins defining a first circumferential surface and a plurality of second fins defining a second circumferential surface; wherein the plurality of first fins are positioned closer to the upper surface of the bone plate and the plurality of second fins are positioned closer to the lower surface of the bone plate; and wherein the plurality of first and second fins each have a tapered surface extending from the inner surface of the opening to a terminal end of the fin. - View Dependent Claims (10, 11, 12)
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13. A bone plate comprising:
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an upper surface; a lower surface; and an opening extending from the lower surface to the upper surface, the opening having an inner surface including a plurality of first fins and a plurality of second fins; wherein; the plurality of first fins are circumferentially disposed about the inner surface, the plurality of circumferentially disposed first fins defining a first circumferential edge including a series of concave and convex surfaces; the plurality of second fins are circumferentially disposed about the inner surface, the plurality of circumferentially disposed second fins defining a second circumferential edge including a series of concave and convex surfaces; the plurality of first fins are closer to the upper surface than the plurality of second fins; and the plurality of first and second fins each have a tapered surface extending from the inner surface of the opening to a terminal end of the fin. - View Dependent Claims (14, 15)
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Specification